Experiencing intermittent packet loss in the afternoon only. Multiple technician visits with no resolution.

I'm unable to receive qualified help regarding my packet loss in the afternoon. Everything looks fine on a speed test so the technicians that come out say there is no problem but using the program ping plotter I can see that the connection is dropping on the 2nd hop and all subsequent hops after when the packets are lost. The first hop is always connected on all devices wired and wireless with 0% loss.

I contacted support to open a ticket for me to speak to a level 2 or higher support but all they did was give me the same number as the lowest level support I was already in contact with. I can't even get anyone from xfinity to confirm they see an issue with my connection they just keep sending technicians out to do the same thing, test my cables and modem and say everything is fine when I can clearly see the connection still dropping after they check, I've had a replacement modem installed and the issue still persists.

Is there any way I can find some real answers about why my connection is being dropped and how to fix it?? This has been happening for a month, it's a new issue I've never had before and can't seem to get the support needed to solve this problem.